Need clarification on configuring trunk ports between switches.
PCA------------SW1 =====SW2---------PCB = = = = SWC
I have a VLAN “100” configured on SW1 and SW2. Both PC-A(SW1) and PC-B(SW2) are in the same VLAN 100.
I have a trunk configured between SW1 and SW2 and no trunk for VLAN 100 configured on SW3.
How does VLAN trunks behave whenever STP topology port state changes(desg, non desg and root port).
In the above case what if my trunk port becomes a non-designated port(blocking).
What are few of best practices for trunk ports with respect to STP.